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学术讲座:城市形态设计的气候环境效益
发布时间 : 2016-11-02

时间:2016112日星期三 1000-11:40

地点:同济大学环境学院明净楼109教室

语言:英文

主讲人:赵磊博士,美国普林斯顿大学, 伍德罗·威尔逊公共与国际关系学院,环境科学技术与政策项目博士后研究员,于耶鲁大学取得大气物理学博士。他结合理论、数值模拟、和遥感技术研究城市的环境和气候,以及气候变化减缓策略。他已在《自然》、《自然-通讯》、《地球物理研究》、《边界层气象》等期刊上发表多篇学术论文。

本讲座受“韧性城市与人居环境可持续发展”高峰计划资助

Report: Designing urban land form for climate and environmental co-benefits

Time: 10:00-11:40, Wednesday, 2 November 2016

Venue: Room 109, Mingjing Building, College of Environmental Science and Engineering, Tongji University

Language: English

Reporter: Dr. Zhao Lei, postdoctoral research fellow in the Program in Science, Technology and Environmental Policy (STEP), Woodrow Wilson School of Public and International Affairs, Princeton University.


Bio

Zhao Lei received his Ph.D. in atmospheric physics from Yale University. He combines theory, numerical modeling, and remote sensing techniques to study the urban climate and environment, and climate mitigation strategies. Dr. Zhao has published widely in top journals including “Nature”, “Nature Communications”, “Journal of Geophysical Research - Atmospheres”, “Boundary-Layer Meteorology”, etc.

Abstract

Heat stress associated with climate change is projected to cause a substantial increase in human mortality and a large reduction in workplace productivity. These risks are further amplified for urban populations because of the urban heat island. Because the majority of the world’s population is projected to live in cities, there is a pressing need to find effective solutions for the high temperature problem. Despite consensus on these heat stress impacts, urban climate agendas are still mostly restricted to carbon management which brings marginal, if any at all, heat relief to urban residents. The few municipalities that have a heat management plan in place focus more on helping individuals cope with heat stress than on actively modifying citywide microclimate. The lack of attention to local-scale heat reduction is partly a legacy of international climate policies on carbon reduction and credit attribution. Another important hindrance is the lack of actionable guidance from the scientific community to city planners on urban heat mitigation methods. A barrier to active UHI mitigation is the lack of quantitative attribution of the various contributions to UHI intensity. It is now recognized that in addition to the traditional emphasis on preparedness to cope with heat stress, these solutions should include active modifications of urban land form to reduce urban temperatures. We integrate remote sensing, climate modeling and geospatial methods to investigate the effectiveness of the commonly proposed active urban climate strategies individually and collectively. A UHI mitigation wedge strategy consisting of cool roof, street vegetation and reflective pavement has the potential to eliminate the daytime UHI plus the greenhouse gas induced warming.


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